<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.0/axios.min.js"></script>
</head>
<body>
  <script>
    axios({
      method:'get',
      url:'http://localhost/demo/src/network/getapi.php',
      params:{
        username:'a',
        age:18
      }
    }).then(res=>{
      console.log(res);
    })
    axios({
      method:'post',
      url:'http://localhost/demo/src/network/getapi.php',
      Headers:{
        'content-type':'application/x-www-from-urlencoded'
      },
      data:{
        username:'a',
        age:18
      }
    }).then(res=>{
      console.log(res);
    })
  </script>
</body>
</html>